Could either be mice or perhaps elves~
Any thoughts on where they'd be gaining entry?

We keep finding little pieces of padding like from under the seats perhaps??

Thanks,
Cris

 

For the record this is inside the car, not the motor area as has been discussed before.

 

I have not seen this before with the inside of the vehicle, only under the bonnet. Somthing to try would be a couple of dryer sheets, or mothballs inside a pair of nylons under the seats. If it is a rodent, this will keep them away.